IP-Centre.org

Patent Search Databases


Free Patent Search Databases:

• Espacenet Search Database

• United States Patent Office Search Database

• Google Patent Database

• WIPO (World Intellectual Property Organisation) Patentscope

• Depatisnet (German Patent Office Database)

• Patent Abstracts of Japan

• Canadian Patent Office Database

• Patent Surf

• Free Patents Online

• Australian Patent Office Search

• EPO Register Plus

• DPinfo German Patent and Utility Model Register

• SumoBrain

• CIPIS

• SIPO English Patent Search (Chinese Patent Office)

• Espacenet in Russian

Other Patent Search databases:

• Delphion

• Patbase

• Questel QPAT

• Micropatent

• STN International

• Minesoft

• Orbit.com